4.8 Article

New Meroterpenoids from Aspergillus terreus with Inhibition of Cyclooxygenase-2 Expression

Journal

ORGANIC LETTERS
Volume 17, Issue 10, Pages 2330-2333

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.5b00739

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Funding

  1. Ministry of Science and Technology [MOST103-2320-B-110-004]
  2. National Sun Yat-Sen University-Kaohsiung Medical University Joint Research Projects [NSYSU-KMU 103-I005, 104-I001]
  3. Academia Summit Project [5202401023-2]

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Two novel meroterpenoids, yaminterritrems A (1) and B (2), were isolated from Aspergillus terreus collected from hot spring zones in Yang-Ming Mountain, Taiwan, and cultured at 40 degrees C. The structures of 1 and 2 were elucidated by NMR, MS spectral and X-ray crystallographic analyses. The biosynthetic route for 1 and 2 involving the conversion of the sesquiterpene with phenyl-alpha-pyrone is proposed. Besides, 2 exhibited a dose-dependent inhibitory effect on COX-2 expression in LPS-stimulated RAW264.7 macrophages.

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